Question
Efficiency of A is 60% more than B and B takes 32 days
to complete a piece of work. A started the work alone and then B joined him 5 days before actual completion of the work. For how many days A worked alone?Solution
Efficiency Ratio = A : B = 160 : 100 = 8 : 5 Days Ratio = A : B = 5 : 8 B takes 32 days to complete a piece of work. => 8’s = 32 => 1’s = 4 => 5’s = 20 So A can complete the work in 20 days. Total units of work = 160 (LCM of 20,32) A = 8 unit B = 5 unit A and B worked for 5 days = 5 × (8+5) = 65 units Remaining work = 160 – 65 = 95 units Hence, A worked alone for = 95/8 days.
Which of the following day is off?
L, K, J, H, G, F, D, and S live on eight different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, n...
Which of the following combination is not true?
Firoj was in which of the following rows?
Four of the five among the following are similar in such a way to form a group, which one of following doesn’t belong to the group?Â
...How many such pair(s) of letters are in the word “PROGRESS” which has as many letters between them (both forward and backward) as in the English alp...
In which of the following floor does Peter lives in a building?
Who among the following live on the topmost floor?
How many floors are there between O and person who likes Blue?
How many persons are sitting between Q and X when counted to the left of Q?
Relevant for Exams:
